TC115中文资料PFM/PWM Step-Up DC/DC Converter数据手册Microchip规格书

描述 Description

The TC115 is a high-efficiency step-up DC/DC converter for small, low input voltage or battery powered sys-tems. This device has a guaranteed start-up voltage of 0.9V and a typical supply current of 80 µA. Phase compensation and soft-start circuitry are included on-chip. Unlike conventional PWM step-up converters, the TC115 automatically shifts to pulse frequency modulation (PFM) at low loads, resulting in reduced supply current and improved efficiency. The TC115 requires only an external diode, an inductor, and a capacitor, and supports typical output currents of 140 mA. Supply current is reduced to less than 0.5 µA, max when SHDN input is brought low. Small size, low installed cost, and low supply current make the TC115 step-up converter ideal for use in a wide range of battery powered systems.

特性 Features

High Efficiency at Low Output Load Currents via PFM Mode
Guaranteed Start-Up at 0.9V
80 µA (typ.) Supply Current
85% (typ.) Efficiency at 100 mA
140 mA Typical Output Current @ VIN = 2.0V
Low Power Shutdown Mode
No External Switching Transistor Needed

简介

TC115属于集成电路（IC）的稳压器-DC-DC开关稳压器。由制造生产的TC115稳压器 - DC-DC 开关稳压器DC-DC 开关稳压器 PMIC（电源管理集成电路）产品族中的产品是元器件级设备，用于需要稳定 DC 输入电压和/或将其转换为不同幅度的输出电压的应用。这些器件与称为“控制器”PMIC 的类似产品的区别在于集成了主开关元件，设备提供的电力会通过该元件。